Can this be used on SW sport ii ar15 ,without any additional hardware and does it take recoil of.223 ?

Many people use it on AR-15's without an issue.
If you want the optic mounted higher, you could get the UTG mid riser for $17 or the High-Profile-Riser for the same price.
The recoil of a .223 should be no problem at all.
You can google pics of AR-15 with BRS-25 to see what it will look like.

➤Zoomer Wireless = ✓ 2+ years➤Tangerine = ✓ 10+ years

I have, or have had, a bank account with every major Canadian Bank + almost all Canadian online banks + numerous AB / BC Credit Unions.

Many people use it on AR-15's without an issue.
If you want the optic mounted higher, you could get the UTG mid riser for $17 or the High-Profile-Riser for the same price.
The recoil of a .223 should be no problem at all.
You can google pics of AR-15 with BRS-25 to see what it will look like.

Hot deal, I got mine for $100 a while ago (mines the gold lettering version) and have run it on a few guns (it's currently residing on a 9mm carbine), I'm half tempted to get another for my little badger,

Thanks for the tip. Regarding your Little Badger-it's a great pairing:

I received the white lettering version - it does NOT have the disappearing dot issue.
It's also really bright, indoors no issue using setting 2 out of 11 and outdoors still usable at 3 out of 11.
Setting 11 is crazy bright!

➤Zoomer Wireless = ✓ 2+ years➤Tangerine = ✓ 10+ years

I have, or have had, a bank account with every major Canadian Bank + almost all Canadian online banks + numerous AB / BC Credit Unions.

Im looking for an optic on my shotgun for deer this fall. Not sure if I want a red dot or low magnification. Tree line is about 50m away

This is about a third of the price of anything else that would do the job (I'm inclined to think it's light weight is why it takes recoil so well?)

You could get a 1-4x that would do the trick too, for ~$200-250, but for low light and short range IMO i'd just stick with this and spend the extra money you saved on a quality load like federal premium w flight control wad buckshot...

Any one using on SW sport ii using may ,answer if I will need a riser mount to clear the front sight, and if so, how high?

Your safest bet would be to order both the UTG mid and high riser mounts mentioned in my answer to you earlier, and then return the one you don't need.
Do not order the Bushnell riser as I don't think you won't be able to co-witness with it properly.

➤Zoomer Wireless = ✓ 2+ years➤Tangerine = ✓ 10+ years

I have, or have had, a bank account with every major Canadian Bank + almost all Canadian online banks + numerous AB / BC Credit Unions.

I received the white lettering version - it does NOT have the disappearing dot issue.
It's also really bright, indoors no issue using setting 2 out of 11 and outdoors still usable at 3 out of 11.
Setting 11 is crazy bright!